import pandas as pd
dict={'姓名':['赵文','李蒙','刘武','何花'],
      '职务':['主管','副主管','员工','员工'],
      '级别工资':[8000,7000,5000,5500],
      '联系方式':['15234549852','15044325820','13687478962','13135349860']}
index=['1','2','3','4']
df =pd.DataFrame(dict,index)
print(df)
df.loc['李华']={'姓名':['李华'],
              '职务':['员工'],
              '基本工资':[5200],
              '联系方式':['1364563235']}
